EP 0654663 A1 19950524 - Method for elementary analysis through optical emission spectroscopy in a plasma produced by a laser beam in presence of Argon.

Title (en)

Method for elementary analysis through optical emission spectroscopy in a plasma produced by a laser beam in presence of Argon.

Title (de)

Verfahren zur Elementaranalyse durch optische Emissionspektroskopie in einem durch Laser in Anwesenheit von Argon erweckten Plasma.

Title (fr)

Procédé d'analyse élémentaire par spectrométrie d'émission optique sur plasma produit par laser en présence d'argon.

Publication

EP 0654663 A1 19950524 (FR)

Application

EP 94402612 A 19941117

Priority

FR 9313855 A 19931119

Abstract (en)

Method for elementary analysis by optical emission spectroscopy on a plasma produced by a laser in the presence of argon. According to the invention, the method consists, in a natural atmosphere, in: - simultaneously blowing a gas jet onto the sample (6) to be analysed and focusing a laser beam (4) on the said sample to be analysed, so as to produce a plasma (12) on the surface of this sample; - analysing a spectrum (S') of the light radiation emitted by the plasma; and - determining, on the basis of this spectral analysis, the isotopic composition of the sample.

Abstract (fr)

Procédé d'analyse élémentaire par spectrométrie d'émission optique sur plasma produit par laser en présence d'argon. Selon l'invention, le procédé consiste, en atmosphère naturelle, à : simultanément, souffler un jet de gaz sur l'échantillon (6) à analyser et focaliser un faisceau laser (4) sur ledit échantillon à analyser de façon à produire un plasma (12) sur la surface de cet échantillon ; analyser un spectre (S') du rayonnement lumineux émis par le plasma ; et déterminer, à partir de cette analyse de spectre, la composition isotopique de l'échantillon. <IMAGE>

IPC 1-7

G01N 21/71

IPC 8 full level

G01N 21/63 (2006.01); G01N 21/71 (2006.01)

CPC (source: EP US)

G01N 21/718 (2013.01 - EP US)

Citation (search report)

[X] AGUILERA ET AL.: "DETERMINATION OF CARBON CONTENT,ETC.", APPLIED SPECTROSCOPY, vol. 46, no. 9, 1 September 1992 (1992-09-01), pages 1382 - 1387
[X] ARAGON ET AL.: "DETERMINATION OF CARBON CONTENT,ETC.", APPLIED SPECTROSCOPY, vol. 47, no. 5, 1 May 1993 (1993-05-01), pages 606 - 608
[A] ARROWSMITH ET AL.: "ENTRAINMENT AND TRANSPORT OF LASER ABLATED PLUMES,ETC.", APPLIED SPECTROSCOPY, vol. 42, no. 7, 1 September 1988 (1988-09-01), pages 1231 - 1239, XP000023616, DOI: doi:10.1366/0003702884430100

Designated contracting state (EPC)

DE ES FR GB PT SE

DOCDB simple family (publication)

EP 0654663 A1 19950524; EP 0654663 B1 20010919; DE 69428328 D1 20011025; DE 69428328 T2 20020704; ES 2164093 T3 20020216; FR 2712697 A1 19950524; FR 2712697 B1 19951215; JP 3618377 B2 20050209; JP H07198610 A 19950801; US 5583634 A 19961210

DOCDB simple family (application)

EP 94402612 A 19941117; DE 69428328 T 19941117; ES 94402612 T 19941117; FR 9313855 A 19931119; JP 28059994 A 19941115; US 33923294 A 19941110